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Millimeter magnetic spectroscopy of paramagnetic complexes Cr(V)

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9 Author(s)
Belyaev, A. ; Inst. of Radiophys. & Electron., Acad. of Sci., Kharkov, Ukraine ; Vorobyova, N. ; Dzyubak, A. ; Ivanchenko, I.
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The obtained results of the complex spectroscopic studies of static and dynamic characteristics of the EHBA(CrV) and HMBA(CrV) complexes diluted in propanediol show that the maximum polarization is achieved for the paramagnetic center concentration N=0.6×1020 - 1.2×1020 cm -3. It has been determined that the "dynamic cooling with the burnt out hole" is the dominating mechanism of dynamic nuclear polarisation (DNP) for both complexes. However, in contrast to the HMBA(CrV) complex the effective diffusion of nuclear spin temperature is the distinctive feature of the nuclear spin kinetics in the EHBA(CrV) complex caused by a different chemical structure of the used organic acid

Published in:

Physics and Engineering of Millimeter and Sub-Millimeter Waves, 2001. The Fourth International Kharkov Symposium on  (Volume:2 )

Date of Conference:

2001

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